These agarics have black spore and in many the cap is tall and narrow with crowded gills. Spores are shed at the margin first then gradually move up towards the strip. As this happens the depleted part of the cap dissolves into an inky fluid. This process of self-destruction continues till all that remains is a black stained stem.

Genus: Coprinellus

Coprinellus micaceus

Coprinellus disseminatus

Genus: Coprinopsis

Coprinopsis atramentaria

Coprinopsis lagopus

Coprinopsis stercoreus

Coprinopsis sp.

Coprinopsis sp.

Genus: Parasola

Parasola plicatilis

Genus: Psathyrella

The genus Psathyrella are thin caped and white stem. But the caps do not self digest as do the coprinus. Some also have brown spores rather then black.